Ghosh Babu deposited a certain sum of money in a bank in 1986. The bank calculated interest on the principal at 10 percent simple interest, and credited it to the account once a year. After the 1st year, Ghosh Babu withdrew the entire interest and 20% of the initial amount. After the 2nd year, he withdrew the interest and 50% of the remaining amount.After the 3rd year, he withdrew the interest and 50% of the remaining amount. Finally after the 4th year, Ghosh Babu closed the account and collected the entire balance of Rs. 11,000.

1. The initial amount in rupees, deposited by Ghosh Babu was:

(a) 25,000(b) 75,000(c) 50,000(d) None of these

2. The year, at the end of which, Ghosh Babu withdrew the smallest amount was:

(a) First(b) Second(c) Third(d) Fourth

3. The year, at the end of which, Ghosh Babu collected the maximum interest was:

(a) First(b) Second(c) Third(d) Fourth

4. The year, at the end of which, Ghosh Babu withdrew the maximum amount was: